Patents by Inventor Kaiwan Chear

Kaiwan Chear has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Publication number: 20250377269
    Abstract: This disclosure provides methods for producing a sample of subcellular organelles, particularly nuclei, from a tissue. In some embodiments, this disclosure provides a method of processing a tissue sample involves performing enzymatic/chemical disruption of tissue in a chamber to produce disrupted tissue comprising released cells and/or nuclei and debris; separating the released cells and/or nuclei from the debris therein; and moving the released cells and/or nuclei. In some instances, the method comprises mechanical disruption of the tissue sample.
    Type: Application
    Filed: March 19, 2025
    Publication date: December 11, 2025
    Inventors: Stevan Bogdan JOVANOVICH, Frank ZAUGG, Kaiwan CHEAR, Roger McIntosh, Nathan PEREIRA
  • Publication number: 20250171768
    Abstract: A cartridge for dissociating tissue, comprising: a processing chamber comprising a stator, a side wall, a top orifice, and a first processing chamber port positioned in the side wall; and a grinder assembly comprising a plunger comprising a rotor, a grinder assembly slidably positioned in the processing chamber through the top orifice; wherein: the stator comprises a plurality of teeth arranged in a spaced-apart array of rings; and the rotor comprises one or more central teeth and a plurality of teeth arranged in a spaced-apart array of rings, wherein one ring of teeth is positioned at or substantially at a circumference of the rotor; wherein the rings in the stator and the rings in the rotor are positioned such that when the rotor contacts the stator, rings of teeth in the stator mesh with the one or more central teeth and rings of teeth in the rotor
    Type: Application
    Filed: March 2, 2023
    Publication date: May 29, 2025
    Inventors: John BASHKIN, Stevan Bogdan JOVANOVICH, Danielle MEYER, Nathan PEREIRA, Kaiwan CHEAR, David EBERHART
  • Publication number: 20250163493
    Abstract: An instrument includes a fluidic cartridge having a body comprising a malleable material and a layer comprising a deformable material bonded to a surface of the body that seals one or more fluidic channels that communicate with one or more valve bodies formed in a surface of the body. The valve can be closed by applying pressure to the deformable material sufficient to close off a fluidic channel in the body. A cartridge interface is configured to engage the cartridge.
    Type: Application
    Filed: November 25, 2024
    Publication date: May 22, 2025
    Applicant: IntegenX Inc.
    Inventors: David Eberhart, William D. Nielsen, Helen Franklin, Stevan B. Jovanovich, Dennis Lehto, Kaiwan Chear, James Klevenberg, Chungsoo Charles Park, Corey M. Smith, Philip Justus Wunderle, David King
  • Patent number: 12152272
    Abstract: An instrument includes a fluidic cartridge having a body comprising a malleable material and a layer comprising a deformable material bonded to a surface of the body that seals one or more fluidic channels that communicate with one or more valve bodies formed in a surface of the body. The valve can be closed by applying pressure to the deformable material sufficient to close off a fluidic channel in the body. A cartridge interface is configured to engage the cartridge.
    Type: Grant
    Filed: December 4, 2023
    Date of Patent: November 26, 2024
    Assignee: IntegenX Inc.
    Inventors: David Eberhart, William D. Nielsen, Helen Franklin, Stevan B. Jovanovich, Dennis Lehto, Kaiwan Chear, James Klevenberg, Chungsoo Charles Park, Corey M. Smith, Philip Justus Wunderle, David King
  • Publication number: 20240344017
    Abstract: A system, methods, and apparatus are described to collect and prepare single cells, nuclei, subcellular components, and biomolecules from specimens including tissues and in some embodiments use the single cells to form organoids or microtissues. The system can perform enzymatic and/or physical disruption of the tissue to dissociate it into single-cells and then use a hanging droplet method to form organoids or microtissues.
    Type: Application
    Filed: February 17, 2024
    Publication date: October 17, 2024
    Inventors: Stevan Bogdan Jovanovich, Kaiwan Chear, Bruce Leisz, David Eberhart, John Bashkin
  • Publication number: 20240175075
    Abstract: An instrument includes a fluidic cartridge having a body comprising a malleable material and a layer comprising a deformable material bonded to a surface of the body that seals one or more fluidic channels that communicate with one or more valve bodies formed in a surface of the body. The valve can be closed by applying pressure to the deformable material sufficient to close off a fluidic channel in the body. A cartridge interface is configured to engage the cartridge.
    Type: Application
    Filed: December 4, 2023
    Publication date: May 30, 2024
    Applicant: IntegenX Inc.
    Inventors: David Eberhart, William D. Nielsen, Helen Franklin, Stevan B. Jovanovich, Dennis Lehto, Kaiwan Chear, James Klevenberg, Chungsoo Charles Park, Corey M. Smith, Philip Justus Wunderle, David King
  • Patent number: 11926815
    Abstract: A system, methods, and apparatus are described to collect and prepare single cells, nuclei, subcellular components, and biomolecules from specimens including tissues and in some embodiments use the single cells to form organoids or microtissues. The system can perform enzymatic and/or physical disruption of the tissue to dissociate it into single-cells and then use a hanging droplet method to form organoids or microtissues.
    Type: Grant
    Filed: March 9, 2023
    Date of Patent: March 12, 2024
    Assignee: S2 GENOMICS, INC.
    Inventors: Stevan Bogdan Jovanovich, Kaiwan Chear, Bruce Leisz, David Eberhart, John Bashkin
  • Patent number: 11891650
    Abstract: Provided herein is a fluidic cartridge having a body comprising a malleable material and a layer comprising a deformable material bonded to a surface of the body that seals one or more fluidic channels that communicate with one or more valve bodies formed in a surface of the body. The valve can be closed by applying pressure to the deformable material sufficient to crush and close off a fluidic channel in the body. Also provided are a cartridge interface configured to engage the cartridge. Also provided is a system including a cartridge interface and methods of using the cartridge and system.
    Type: Grant
    Filed: February 22, 2021
    Date of Patent: February 6, 2024
    Assignee: INTEGENX, INC.
    Inventors: David Eberhart, William D. Nielsen, Helen Franklin, Stevan B. Jovanovich, Dennis Lehto, Kaiwan Chear, James Klevenberg, Chungsoo Charles Park, Corey M. Smith, Philip Justus Wunderle, David King
  • Publication number: 20240027311
    Abstract: This disclosure provides methods for producing a sample of subcellular organelles, particularly nuclei, from a tissue. In some embodiments, this disclosure provides a method of processing a tissue sample involves performing enzymatic/chemical disruption of tissue in a chamber to produce disrupted tissue comprising released cells and/or nuclei and debris; separating the released cells and/or nuclei from the debris therein; and moving the released cells and/or nuclei. In some instances, the method comprises mechanical disruption of the tissue sample.
    Type: Application
    Filed: August 1, 2023
    Publication date: January 25, 2024
    Inventors: Stevan Bogdan Jovanovich, Frank Zaugg, Kaiwan Chear, Roger McIntosh, Nathan Pereira
  • Publication number: 20230407232
    Abstract: A system, methods, and apparatus are described to collect and prepare single cells, nuclei, subcellular components, and biomolecules from specimens including tissues and in some embodiments use the single cells to form organoids or microtissues. The system can perform enzymatic and/or physical disruption of the tissue to dissociate it into single-cells and then use a hanging droplet method to form organoids or microtissues.
    Type: Application
    Filed: March 9, 2023
    Publication date: December 21, 2023
    Inventors: Stevan Bogdan Jovanovich, Kaiwan Chear, Bruce Leisz, David Eberhart, John Bashkin
  • Patent number: 11719608
    Abstract: This disclosure provides methods for producing a sample of subcellular organelles, particularly nuclei, from a tissue. In some embodiments, this disclosure provides a method of processing a tissue sample involves performing enzymatic/chemical disruption of tissue in a chamber to produce disrupted tissue comprising released cells and/or nuclei and debris; separating the released cells and/or nuclei from the debris therein; and moving the released cells and/or nuclei. In some instances, the method comprises mechanical disruption of the tissue sample.
    Type: Grant
    Filed: January 23, 2022
    Date of Patent: August 8, 2023
    Assignee: S2 GENOMICS, INC.
    Inventors: Stevan Bogdan Jovanovich, Frank Zaugg, Kaiwan Chear, Roger McIntosh, Nathan Pereira
  • Patent number: 11618876
    Abstract: A system, methods, and apparatus are described to collect and prepare single cells, nuclei, subcellular components, and biomolecules from specimens including tissues and in some embodiments use the single cells to form organoids or microtissues. The system can perform enzymatic and/or physical disruption of the tissue to dissociate it into single-cells and then use a hanging droplet method to form organoids or microtissues.
    Type: Grant
    Filed: June 1, 2019
    Date of Patent: April 4, 2023
    Assignee: S2 GENOMICS, INC.
    Inventors: Stevan Bogdan Jovanovich, Kaiwan Chear, Bruce Leisz, David Eberhart, John Bashkin
  • Publication number: 20220290092
    Abstract: A system, methods, and apparatus are described to collect and prepare single cells, nuclei, subcellular components, and biomolecules from specimens including tissues and in some embodiments use the single cells to form organoids or microtissues. The system can perform enzymatic and/or physical disruption of the tissue to dissociate it into single-cells and then use a hanging droplet method to form organoids or microtissues.
    Type: Application
    Filed: June 1, 2019
    Publication date: September 15, 2022
    Inventors: Stevan Bogdan Jovanovich, Kaiwan Chear, Bruce Leisz, David Eberhart, John Bashkin
  • Patent number: 11441976
    Abstract: A system, methods, and apparatus are described to collect and prepare single cells, nuclei, subcellular components, and biomolecules from specimens including tissues. The system can perform enzymatic and/or physical disruption of the tissue to dissociate it into single-cells or nuclei in suspension or subcellular components including nucleic acids. In some embodiments, the titer of dissociated cells is monitored at intervals and the viability determined. In some embodiments, the processing is adjusted according to the measurements of the titer and viability. In some embodiments, the single-cells or nuclei in suspension are washed and resuspended in the buffer or media of choice. In some embodiments, the conditions are chosen to produce nuclei. In other embodiments, the single-cells or nuclei are purified by affinity paramagnetic bead processing. In some embodiments, matched bulk nucleic acid to the single-cells is produced.
    Type: Grant
    Filed: October 28, 2021
    Date of Patent: September 13, 2022
    Assignee: S2 GENOMICS, INC.
    Inventors: Stevan Bogdan Jovanovich, Frank Zaugg, Kaiwan Chear, Roger McIntosh, Nathan Pereira
  • Publication number: 20220146382
    Abstract: This disclosure provides methods for producing a sample of subcellular organelles, particularly nuclei, from a tissue. In some embodiments, this disclosure provides a method of processing a tissue sample involves performing enzymatic/chemical disruption of tissue in a chamber to produce disrupted tissue comprising released cells and/or nuclei and debris; separating the released cells and/or nuclei from the debris therein; and moving the released cells and/or nuclei. In some instances, the method comprises mechanical disruption of the tissue sample.
    Type: Application
    Filed: January 23, 2022
    Publication date: May 12, 2022
    Inventors: Stevan Bogdan Jovanovich, Frank Zaugg, Kaiwan Chear, Roger McIntosh, Nathan Pereira
  • Publication number: 20220082479
    Abstract: A system, methods, and apparatus are described to collect and prepare single cells, nuclei, subcellular components, and biomolecules from specimens including tissues. The system can perform enzymatic and/or physical disruption of the tissue to dissociate it into single-cells or nuclei in suspension or subcellular components including nucleic acids. In some embodiments, the titer of dissociated cells is monitored at intervals and the viability determined. In some embodiments, the processing is adjusted according to the measurements of the titer and viability. In some embodiments, the single-cells or nuclei in suspension are washed and resuspended in the buffer or media of choice. In some embodiments, the conditions are chosen to produce nuclei. In other embodiments, the single-cells or nuclei are purified by affinity paramagnetic bead processing. In some embodiments, matched bulk nucleic acid to the single-cells is produced.
    Type: Application
    Filed: October 28, 2021
    Publication date: March 17, 2022
    Inventors: Stevan Bogdan Jovanovich, Frank Zaugg, Kaiwan Chear, Roger McIntosh, Nathan Pereira
  • Patent number: 11231347
    Abstract: A system, methods, and apparatus are described to collect and prepare single cells, nuclei, subcellular components, and biomolecules from specimens including tissues. The system can perform enzymatic and/or physical disruption of the tissue to dissociate it into single-cells or nuclei in suspension or subcellular components including nucleic acids. In some embodiments, the titer of dissociated cells is monitored at intervals and the viability determined. In some embodiments, the processing is adjusted according to the measurements of the titer and viability. In some embodiments, the single-cells or nuclei in suspension are washed and resuspended in the buffer or media of choice. In some embodiments, the conditions are chosen to produce nuclei. In other embodiments, the single-cells or nuclei are purified by affinity paramagnetic bead processing. In some embodiments, matched bulk nucleic acid to the single-cells is produced.
    Type: Grant
    Filed: November 29, 2017
    Date of Patent: January 25, 2022
    Assignee: S2 GENOMICS, INC.
    Inventors: Stevan Jovanovich, Frank Zaugg, Kaiwan Chear, Roger McIntosh, Nathan Pereira
  • Publication number: 20210214673
    Abstract: A system, methods, and apparatus are described to collect and prepare single cells, nuclei, subcellular components, and biomolecules from specimens including tissues and in some embodiments use the single cells to form organoids or microtissues. The system can perform enzymatic and/or physical disruption of the tissue to dissociate it into single-cells and then use a hanging droplet method to form organoids or microtissues.
    Type: Application
    Filed: June 1, 2019
    Publication date: July 15, 2021
    Inventors: Stevan Bogdan Jovanovich, Kaiwan Chear, Bruce Leisz, David Eberhart, John Bashkin
  • Publication number: 20210180114
    Abstract: Provided herein is a fluidic cartridge having a body comprising a malleable material and a layer comprising a deformable material bonded to a surface of the body that seals one or more fluidic channels that communicate with one or more valve bodies formed in a surface of the body. The valve can be closed by applying pressure to the deformable material sufficient to crush and close off a fluidic channel in the body. Also provided are a cartridge interface configured to engage the cartridge. Also provided is a system including a cartridge interface and methods of using the cartridge and system.
    Type: Application
    Filed: February 22, 2021
    Publication date: June 17, 2021
    Inventors: David Eberhart, William D. Nielsen, Helen Franklin, Stevan B. Jovanovich, Dennis Lehto, Kaiwan Chear, James Klevenberg, Chungsoo Charles Park, Corey M. Smith, Philip Justus Wunderle, David King
  • Patent number: 10961561
    Abstract: Provided herein is a fluidic cartridge having a body comprising a malleable material and a layer comprising a deformable material bonded to a surface of the body that seals one or more fluidic channels that communicate with one or more valve bodies formed in a surface of the body. The valve can be closed by applying pressure to the deformable material sufficient to crush and close off a fluidic channel in the body. Also provided are a cartridge interface configured to engage the cartridge. Also provided is a system including a cartridge interface and methods of using the cartridge and system.
    Type: Grant
    Filed: January 17, 2019
    Date of Patent: March 30, 2021
    Assignee: IntegenX, Inc.
    Inventors: David Eberhart, William D. Nielsen, Helen Franklin, Stevan B. Jovanovich, Dennis Lehto, Kaiwan Chear, James Klevenberg, Chungsoo Charles Park, Corey M. Smith, Philip Justus Wunderle, David King